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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-06-14 15:36:18 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-06-14 15:36:18 +0000 |
commit | 6ee68a773a24586f6e6cfaccdf7dce064d213e88 (patch) | |
tree | b58f7a0c1a757afd69497ec1acd90d07ef722701 /nuttx/lib/lib_isbasedigit.c | |
parent | e1c5f0014d78d36039793087273d4f2925134eaf (diff) | |
download | px4-nuttx-6ee68a773a24586f6e6cfaccdf7dce064d213e88.tar.gz px4-nuttx-6ee68a773a24586f6e6cfaccdf7dce064d213e88.tar.bz2 px4-nuttx-6ee68a773a24586f6e6cfaccdf7dce064d213e88.zip |
Add strtoul, strtoll, strtoull, atol, and atoll.
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1883 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/lib/lib_isbasedigit.c')
-rw-r--r-- | nuttx/lib/lib_isbasedigit.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/nuttx/lib/lib_isbasedigit.c b/nuttx/lib/lib_isbasedigit.c new file mode 100644 index 000000000..c3976ea86 --- /dev/null +++ b/nuttx/lib/lib_isbasedigit.c @@ -0,0 +1,103 @@ +/**************************************************************************** + * lib/lib_isbasedigit.c + * + * Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <sys/types.h> +#include <string.h> +#include <ctype.h> +#include "lib_internal.h" + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: lib_isbasedigit + * + * Description: + * Given an ASCII character, ch, and a base (1-36) do two + * things: 1) Determine if ch is a valid charcter, and 2) + * convert ch to its binary value. + * + ****************************************************************************/ + +boolean lib_isbasedigit(int ch, int base, int *value) +{ + boolean ret = FALSE; + int tmp = 0; + + if (base <= 10) + { + if (ch >= '0' && ch <= base + '0' - 1) + { + tmp = ch - '0'; + ret = TRUE; + } + } + else if (base <= 36) + { + if (ch >= '0' && ch <= '9') + { + tmp = ch - '0'; + ret =TRUE; + } + else if (ch >= 'a' && ch <= 'a' + base - 11) + { + tmp = ch - 'a' + 10; + ret = TRUE; + } + else if (ch >= 'A' && ch <= 'A' + base - 11) + { + tmp = ch - 'A' + 10; + ret = TRUE; + } + } + + if (value) + { + *value = tmp; + } + return ret; +} + + |